ground clearance AUDI S8 2011 Owners Manual

18 Instruments and warning/indicator lights
There is a malfunction that can result in re­
stricted driving stability.
Carefully drive at a maximum speed of 35
mph
(60 km/h) to your authorized Audi dealer
or qualified workshop to have the malfunction
corrected.
• Air suspension: service mode. Vehicle
can only be moved with restrictions
Carefully drive to your authorized Audi dealer
or qualified workshop immediately to have
the service mode deactivated.
II Air suspension fault
There is a system malfunction that can result
in restricted driving stability or reduced
ground clearance.
Drive to your authorized Audi dealer immedi­
ately to have the malfunction corrected.
II Air suspension: vehicle too low. Ground
clearance reduced
The ground clearance is very low due to a sys­
tem malfunction. Wait until the air suspen ­
sion system has restored normal ground clear­
ance. Otherwise, conditions such as an uneven
road surface can lead to vehicle damage.
~/ !f Safety systems
The fl (USA models)!EJ (Canada models) in­
dicator light monitors the safety systems e.g.
airbags, pretensioners and illuminates for a
few seconds each time you switch the ignition
on.
If the
I (USA models);EI (Canada models)
indicator light does not go out, or if it illumi­
nates while you are driving, or if it starts to
blink, then there is a malfunction somewhere
in the system . If the light does not illuminate
when you switch the ignition on, this also
means there is a malfunction.
A WARNING
If you have a malfunction in the safety sys­
tems, contact your authorized Audi dealer
immediately. Otherwise the saftey sys- terns may not work
properly in an acci­
dent.
f;.J [J. Electronic stabilization program
(ESP)
This warning/indicator light monitors the
electronic stabilization program.
When you switch the ignition on, the indicator light
G] turns on briefly to check the function.
If the
BJ indicator lamp blinks while driving,
the ESP or ASR (Anti-Slip Regulation) is active­
ly regulating.
If the BJ indicator lamp illuminates, the sys­
tem has switched the ESP off.
If the indicator light
I turns on, the ESP was
switched to ESP sport mode with the button
[!] c::> page 190. If this is case , you can reacti­
vate the ESP by switching the ignition off and
then on again. The warning/indicator light
should go out to show that the system is fully
functional again.
ESP/ABS: fault! See owner's manual
If the indicator light DJ and the ABS indicator
light
m (USA models) ;ii] (Canada models)
turn on and the message appears, there is a
malfunction in the ABS system or electronic
differential lock. This also interrupts the ESP.
The brakes still function with their normal
power, but ABS is not active.
Drive to your authorized Audi dealer immedi­
ately to have the malfunction corrected.
If the battery terminals were disconnected
and re-connected, the vehicle was jump start­
ed or the battery is very weak, the ESP sensor
system goes through a learning process for
the first few yards. The warning/indicator
light illuminates. The warning/indicator light
goes out as soon as the learning process is
complete.
For more information about the ESP
c::> page 190.

86 Adaptive cruise control and braking guard
Adaptive cruise control
and braking guard
Introduction
Applies to vehicles: with adaptive cruise co ntrol
The adaptive cruise control system assists the
driver by regulating vehicle speed and helping
to maintain a set distance to the vehicle
ahead, within the limits of the system . If the
system detects a moving vehicle up ahead,
adaptive cruise control can brake and then ac­
celerate your vehicle. This helps to make driv ­
ing more comfortable both on long highway
stretches and in stop -and-go traffic.
Audi braking guard can warn you about an im­ pending collision with a vehicle up ahead that
is slower or has slowed down and start slow­
ing your vehicle down with the brakes
<::> page 92.
Adaptive cruise control and Audi Braking
Guard have technical limitations that you
must know, so please read this section care­
fully, understand how the system works and
use them properly at all times.
General information
General information
Applies to vehicles: with Adapt ive cruise contro l
Fig. 85 Front of th e ve hicle : senso rs a nd video camera
The areas that contain the radar and ultrason­
ic sensors and the video camera
c::> fig . 85
must never be covered by stickers, or other
things or coated with dirt, insects, snow or ice
that will interfere with the Adaptive cruise
control system and Audi braking guard . Re­
move snow with a hand brush and remove ice with a de-icing spray that does not contain
solvents.
The function of the Adaptive cruise control
system and Audi braking guard is limited un­
der some conditions.
- Objects can only be detected when they are
within sensor range
c::> page 88, fig. 88 .
-The system has a limited ability to detect
objects that are a short distance ahead, off
to the side of your vehicle or moving into
your lane from the front or moves into your
lane from the side.
- When driving through curves
r=;> page 87.
-Some kinds of vehicles are hard to detect;
for examp le motorcycles, vehicles with high
ground clearance or overhanging loads mab
be detected when it is too late or they may
not be detected at all.
- Stationary objects
c::> page 87.
A WARNING
Improper use of the adaptive cruise con­
trol can cause collisions, other accidents
and serious personal injury. -
-Never let the comfort and convenience
that adaptive cruise control and Audi
braking guard offer distract you from the
need to be alert to traffic conditions and
the need to remain in full control of your
vehicle at all times,
- Always remember that the adaptive
cru ise control and Audi braking guard
have lim its -they will not slow the vehi­
cle down or maintain the set distance
when you drive towards an obstacle or
something on or near the road that is not
moving, such as vehicles stopped in a
traffic jam, a stalled or disabled vehicle.
If registered by the radar sensors, vehi­
cles or obstacles that are not moving can
trigger a collision warning and if con­
firmed by the video camera, an acute col­ lision warning.
- Always remember that the adaptive
cruise control cannot detect a vehicle
that is driving towards you in your traffic
lane and that it cannot detect narrow
~